A small group of things. To come together in a group, flock etc..

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

outside. without it being case that. Not with; not having.

relating to or making use of form of tape transport, used mainly to provide backup storage. method of relaying data over computer network as steady continuous stream. To split classes or students into ability levels.

Best or most interesting part of something. To use a pen to mark places of interest in a book.

make best or most effective use of.

not same as another or each other.

amount of work to be done by person or thing. Work you are expected to do in a specified time.

flowing naturally or supplied to building through pipes and taps. action or movement of runner. To depart or travel according to a schedule.

move troops into position for military action.

in most essential respects.

(of data) copied from one computer system to another. To transfer data from a computer or the internet.

For a reason.

gesture, action, or sound that is used to convey information or instructions. Acts or sounds that tells someone to do or start. To be evidence/an indication something will happen.